title: Application of cross-sectional imaging in the differential diagnosis of apical radiolucency.
abstract: A case is described in which exact localization of a cystic lesion associated with the apices of the maxillary central incisor teeth was sought to aid diagnosis and presurgical planning. The area was imaged using cross-sectional tomographic slices in the sagittal plane produced by a Scanora multimodal tomographic unit (Orion Corporation Soredex, Helsinki, Finland). The images demonstrated the cystic lesion arising within the incisive canal, conforming a diagnosis of naso-palatine duct cyst. Surgery was therefore performed via a palatal approach giving direct access to the cyst. Histological examination of the enucleated cyst confirmed a nasopalatine duct cyst.
authors.affiliation: Eastman Dental Institute, London, UK.
authors.forename: I R
authors.initials: IR
authors.lastname: Harris
authors.forename: J E
authors.initials: JE
authors.lastname: Brown
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008439:Maxillary Diseases / Q000000981:diagnostic imaging* / Q000473:pathology; D009296:Nasal Cavity / Q000000981:diagnostic imaging* / Q000473:pathology*; D009631:Nonodontogenic Cysts / Q000000981:diagnostic imaging* / Q000473:pathology; D010159:Palate / Q000000981:diagnostic imaging* / Q000473:pathology; D011861:Radiography, Dental / Q000295:instrumentation / Q000379:methods; D014056:Tomography, X-Ray / Q000295:instrumentation / Q000379:methods